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VB中的IS运算符

2025-04-07 05:42:01

推荐回答（3个）

回答1：

没见过这么用的 is一般用来判断吧像 if a is nothing 之类再有就是select case acase is>5 end select这么用至于你写的还真没见过你想弄啥呢

回答2：

跟你说过了
if typeof(Text1) is TextBox then
msgbox "是文本框"
end if

回答3：

你没有绘制command1和command2这两个对象

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